大型油罐防火堤事故荷载分析计算

ANALYSIS OF EMERGENCY LOADING ON FIRE-DYKE IN OIL TANK AREA BY FINITE ELEMENT METHODS

依油罐破裂时孔口所在高度不同，将罐体沿高度分作５个区段，分别进行了荷载计算．另外，针对大型贮油罐裂缝多发生在罐壁底部的特点，就防火堤内充满溢流液体的不利工况，通过有限元分析，探讨了防大堤内侧坡度对事故荷载产生的影响。

in terms of the indeterminacy of crack levels and the variety of the actionso f jet on fire-dyke,five divisions of oil tanks in vertical direction are defined and the corresponding loadings are computed.Based on the specific characteristic of the cracks,i.e.,lowlevel and horizontal orientation,and provided that the fire-prevention area is full ofspillingwater,the influences of the slope of the innerside of the fire dyke on the emergencyloading are investigated by finite element methods.A series of curves of loading-levels andsome beneficial conclusions are given.